Finding the Fourth Proportional to 16,693.88, 23,039.69 and 9,620.36

Step by Step Solution

1. Step 1: Write the proportion equation
   16,693.88 : 23,039.69 = 9,620.36 : x
2. Step 2: Convert to fraction form
   16,693.88/23,039.69 = 9,620.36/x
3. Step 3: Cross multiply
   16,693.88x = 23,039.69 × 9,620.36
4. Step 4: Simplify right side
   16,693.88x = 221,649,948.79
5. Step 5: Solve for x
   x = 221,649,948.79/16,693.88
6. Step 6: Final answer
   x = 13,277.32